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[3.9] bpo-46968: Check for 'sys/auxv.h' in the configure script (GH-31961) by pablogsal · Pull Request #31975 · python/cpython · GitHub
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[3.9] bpo-46968: Check for 'sys/auxv.h' in the configure script (GH-31961) #31975

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Merged
pablogsal merged 1 commit into from
Mar 18, 2022
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[3.9] bpo-46968: Check for 'sys/auxv.h' in the configure script (GH-31961) #31975

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[3.9] bpo-46968: Check for 'sys/auxv.h' in the configure script (GH-3… 
…1961).

(cherry picked from commit 8e3fde7)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
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@pablogsal
pablogsal committed Mar 18, 2022
commit b66af273d743bf501c13b2fe909ff91296484ab4
3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2022-03-17-14-22-23.bpo-46968.4gz4NA.rst
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@@ -0,0 +1,3 @@
Check for the existence of the "sys/auxv.h" header in :mod:`faulthandler` to
avoid compilation problems in systems where this header doesn't exist. Patch
by Pablo Galindo
6 changes: 3 additions & 3 deletions Modules/faulthandler.c
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Expand Up @@ -21,9 +21,9 @@
# define FAULTHANDLER_USE_ALT_STACK
#endif

#if defined(FAULTHANDLER_USE_ALT_STACK) && defined(HAVE_LINUX_AUXVEC_H)
# include <linux/auxvec.h>
# include <sys/auxv.h>
#if defined(FAULTHANDLER_USE_ALT_STACK) && defined(HAVE_LINUX_AUXVEC_H) && defined(HAVE_SYS_AUXV_H)
# include <linux/auxvec.h> // AT_MINSIGSTKSZ
# include <sys/auxv.h> // getauxval()
#endif

/* Allocate at maximum 100 MiB of the stack to raise the stack overflow */
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2 changes: 1 addition & 1 deletion configure
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Expand Up @@ -8042,7 +8042,7 @@ sys/stat.h sys/syscall.h sys/sys_domain.h sys/termio.h sys/time.h \
sys/times.h sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/wait.h pty.h \
libutil.h sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
linux/tipc.h linux/random.h spawn.h util.h alloca.h endian.h \
sys/endian.h sys/sysmacros.h linux/auxvec.h linux/memfd.h linux/wait.h sys/memfd.h sys/mman.h
sys/endian.h sys/sysmacros.h linux/auxvec.h sys/auxv.h linux/memfd.h linux/wait.h sys/memfd.h sys/mman.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
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2 changes: 1 addition & 1 deletion configure.ac
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Expand Up @@ -2228,7 +2228,7 @@ sys/stat.h sys/syscall.h sys/sys_domain.h sys/termio.h sys/time.h \
sys/times.h sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/wait.h pty.h \
libutil.h sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
linux/tipc.h linux/random.h spawn.h util.h alloca.h endian.h \
sys/endian.h sys/sysmacros.h linux/auxvec.h linux/memfd.h linux/wait.h sys/memfd.h sys/mman.h)
sys/endian.h sys/sysmacros.h linux/auxvec.h sys/auxv.h linux/memfd.h linux/wait.h sys/memfd.h sys/mman.h)
AC_HEADER_DIRENT
AC_HEADER_MAJOR

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3 changes: 3 additions & 0 deletions pyconfig.h.in
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Expand Up @@ -1113,6 +1113,9 @@
/* Define to 1 if you have the <sys/audioio.h> header file. */
#undef HAVE_SYS_AUDIOIO_H

/* Define to 1 if you have the <sys/auxv.h> header file. */
#undef HAVE_SYS_AUXV_H

/* Define to 1 if you have the <sys/bsdtty.h> header file. */
#undef HAVE_SYS_BSDTTY_H

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